CN115720568A - Method for building an elevator installation and elevator installation suitable for carrying out the method - Google Patents
Method for building an elevator installation and elevator installation suitable for carrying out the method Download PDFInfo
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- CN115720568A CN115720568A CN202180045350.8A CN202180045350A CN115720568A CN 115720568 A CN115720568 A CN 115720568A CN 202180045350 A CN202180045350 A CN 202180045350A CN 115720568 A CN115720568 A CN 115720568A
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- platform
- rope
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- elevator
- lifting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B19/00—Mining-hoist operation
- B66B19/04—Installing or removing mining-hoist cars, cages, or skips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B19/00—Mining-hoist operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B19/00—Mining-hoist operation
- B66B19/02—Installing or exchanging ropes or cables
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
Method for erecting an elevator installation (1) in a building in its construction phase, in which method the available hoisting height of the elevator installation is adapted to the increasing height of the building, in which elevator shaft (2) a machine platform (10) that can be hoisted and that can be temporarily stopped is mounted, on which machine platform an elevator drive machine (11) with drive wheels (12) is arranged; the elevator car (3) and the counterweight (4) are suspended on the machine platform (10) by means of a spreader (15) such that the elevator car (3) and the counterweight (4) can be moved upwards and downwards along guide rails in the elevator shaft (2) by means of the drive wheels (12) via the spreader (15); above the machine platform (10), a hoisting platform (17) is mounted which can be hoisted in the elevator shaft (2) and which can be temporarily stopped, the machine platform (10) with the elevator car (3) or the counterweight (4) being hoisted by means of the hoisting platform (10) when the available hoisting height of the elevator car should be adapted to the current height of the elevator shaft (2); and lifting the lifting platform (17) to a higher level by means of a construction crane (40) or other lifting means (35) before lifting the machine platform (10); and the hoisting platform (17) is equipped with a rope catch device (25.1) comprising a safety rope (31) which is arranged between the hoisting platform (17) and a sheave support (26) fixed in the elevator shaft (2) above the hoisting platform according to the principle of a pulley block having at least two load-bearing rope segments, wherein the first load-bearing rope segment of the safety rope (31) is fixed on the hoisting platform (17) or is fixed in position above the hoisting platform, the last load-bearing rope segment is guided through a rope stop (30) fixed on the hoisting platform (17), and after the speed of the last load-bearing rope segment relative to the rope stop (30) exceeds a predetermined limit, the last load-bearing rope segment is locked by means of the rope stop, and further lowering of the hoisting platform (17) is prevented.
Description
Technical Field
The invention relates on the one hand to a method for erecting an elevator installation in a building in its construction phase, in which method the available hoisting height of the elevator installation is adapted to the increasing height of the building, and on the other hand to an elevator installation suitable for carrying out the method. Such an elevator installation usually comprises a machine platform with an elevator drive machine, which can be moved along an elevator shaft and can be temporarily stopped in the elevator shaft, and at least one elevator car which is suspended on the machine platform by means of a hoist and is driven by the elevator drive machine. During installation of the elevator installation, the available hoisting height of the elevator car is adapted from time to the increased height of the building by: at least the machine platform carrying the elevator car is raised to a higher level by means of a lifting platform temporarily fixed above the machine platform.
Background
WO2010/100319 discloses such an elevator installation and such a method, in which the elevator car and the counterweight are suspended by means of a flexible traction mechanism on a machine platform which can be lifted and temporarily fixed in the elevator shaft. The traction means are guided via the drive wheels on the elevator drive machine so that the traction means are driven by the drive wheels, the elevator car and the counterweight can thus be moved upwards and downwards in the elevator shaft opposite to each other. As the building height increases, the machine platform is raised from time to a higher level and is fixed there in the elevator shaft. The elevator installation can thus transport on the one hand people and material to the currently uppermost region of the building in its construction phase and on the other hand also users from other floors located below that have been completed, and their furniture, for example, by means of the elevator installation.
In order to be able to lift the machine platform, a lifting platform which can also be lifted in the elevator shaft and which can be temporarily fixed is mounted above the machine platform. A set of deflection wheels is respectively mounted on the lifting platform and also on the machine platform, wherein, between the deflection wheel set of the lifting platform and the deflection wheel set of the machine platform, multiple lifting ropes are arranged in such a way that the machine platform can lift the base body platform by means of two rope pulling devices mounted on the machine platform. Before each lifting of the machine platform, the hoisting platform needs to be brought to a higher level in the elevator shaft. This is done with the aid of a crane which is fixed to another load-bearing structure which is displaceable and fixable in the elevator shaft, and the hoisting platform can be hoisted by means of hoisting ropes.
The risk of the machine platform falling when the machine platform is lifted is usually reduced by equipping the machine platform with a fall arrest brake, which acts on the guide rails of the elevator car on which the machine platform is also guided. If the maximum permitted lowering speed is exceeded in some cases, the safety brake is activated and the machine platform is stopped by means of the braking action between the guide rail and the safety brake.
There is also a risk that the hoisting platform falls into the elevator shaft when the hoisting platform is hoisted. The hoisting platform cannot, however, be guided on the guide rails, because in the uppermost region of the elevator shaft, in which region the hoisting platform is positioned before the machine platform is lifted, at the point in time of lifting the hoisting platform, the guide rails have not yet been fitted. Therefore, the safety brake as a fall arrester cannot be used.
Disclosure of Invention
The purpose of the invention is: a method and an elevator installation of the above-mentioned type are provided which are suitable for carrying out the method, wherein the risk of falling of the lifting platform and the risk of accidents for the fitter when lifting the lifting platform is minimized.
The solution of this object consists on the one hand in a method for erecting an elevator installation in an elevator shaft of a building at the construction stage, in which method the available hoisting height of the elevator installation is adapted to the increasing height of the building, wherein in the elevator shaft a machine platform is installed which can be lifted and temporarily stopped along car guide rails, on which machine platform an elevator drive machine with drive wheels is arranged, with which elevator car and counterweight are suspended on the machine platform, which is guided at least via the drive wheels of the elevator drive machine, so that the elevator car and counterweight can be moved upwards and downwards in the elevator shaft opposite to each other via the hoist along the guide rails by means of the drive wheels, above which machine platform a hoisting platform is installed which can be lifted and temporarily stopped in the elevator shaft, when the available hoisting height of the elevator car should be adapted to the current height of the elevator shaft, the machine platform, and usually also the elevator car coupled thereto, is hoisted together with the hoisting platform, which is hoisted to a higher level by means of a construction crane or other hoisting apparatus before the machine platform is hoisted, and which is equipped with a rope fall arrest device comprising a safety rope which is arranged between the hoisting platform and a sheave support fixed in the elevator shaft above the hoisting platform according to the principle of a block and tackle having at least two load-bearing rope segments, wherein the first load-bearing rope segment of the safety rope is fixed on or positionally fixed above the hoisting platform, the last load-bearing rope segment being guided through a rope stop device fixed on the hoisting platform, after the speed of the last rope segment serving as a load-bearing part relative to the rope stop means has exceeded a predetermined limit, the last rope segment serving as a load-bearing part is locked by means of the rope stop means, and the hoisting platform is prevented from further lowering.
The segments of the safety line arranged according to the block-and-tackle principle, which, after activation of the line fall arrest device or its line stopping device, transmit the respectively identical part of the total braking force occurring during a fall arrest between the sheave support and the hoisting platform, are referred to as load-bearing line segments. Commercially available devices (e.g., "Bloc-Stop") may be used as the rope stopping device.
With the method according to the invention or the elevator installation according to the invention, which comprises the rope fall arrest device as described for the hoisting platform, the requirement for minimizing the risk of the hoisting platform falling can be met with relatively little effort, even when the hoisting platform has to be positioned in the uppermost region of the elevator shaft which does not yet have guide rails.
Advantageous, additional or alternative designs and improvements of the invention are described below.
In an advantageous embodiment of the method according to the invention, the load-bearing rope portions of the safety rope are arranged in such a way that, when the rope fall arrester device is activated, the line of action of the resultant of the rope forces of all the load-bearing rope portions passes approximately through the center of gravity of the lifting platform. By virtue of this measure, what can be achieved is: when the lifting platform which is moved downwards at an impermissibly high speed is stopped by means of the cable fall-protection device, the lifting platform which is not guided on the guide rails does not tip over, but maintains its horizontal position. Thus, injuries to the fitter and damage to the hoisting platform and the elevator shaft wall can be avoided.
In a further possible embodiment of the method according to the invention, the entire safety line of the line safety device is arranged in such a way that it runs completely outside a free space which extends in the upward direction above the center of gravity of the lifting platform and which makes it possible to lower the crane hook of the construction crane onto the coupling element mounted above the center of gravity on the lifting platform.
This arrangement of the safety line achieves an unhindered vertical lowering of the crane line to the centre of gravity of the lifting platform and a coupling of the crane line with the coupling element present on the lifting platform at or above its centre of gravity.
In another possible embodiment of the method according to the invention, the free space is dimensioned in the following manner: in this free space, a cylinder of at least 0.4m diameter may be arranged, extending upwards from the centre of gravity of the lifting platform.
Hereby is also achieved that the set of crane hook sheaves with the crane hook arranged thereon can be lowered to the coupling element present on the hoisting platform.
In another possible design of the method according to the invention, the sheave support is fixed on a protective platform which is vertically displaceable and fixable in the elevator shaft above the hoisting platform.
This is a particularly advantageous solution for fixing the sheave support in the elevator shaft, since such a protective platform must be present anyway for protecting the fitter from falling objects.
In another possible design of the method according to the invention, the protective platform is provided with a through opening arranged in the above-mentioned free space region, through which opening the crane hook is lowered to the coupling element on the lifting platform.
In another possible design of the method according to the invention, the sheave support is equipped with four vertically arranged and four horizontally arranged deflection wheels. The definition of the installation position of the deflecting pulley in vertical or horizontal direction is here related to the position of the sheave plane. In this design variant, the safety line is guided through the deflection wheels and through at least one carrying wheel of the carrying wheel structure coupled with the lifting platform, so that the safety line forms four load-bearing line segments and is distributed completely outside the free space. The advantage of this embodiment is that all coupling points which exist between the cable fall arrest device and the lifting platform are close to a reference plane which extends vertically through the center of gravity of the lifting platform, so that more space is available for the fitter and the auxiliary devices on both sides of the reference plane.
In another possible design of the method according to the invention, the rope pulley support is equipped with only four vertically arranged deflecting wheels, wherein the safety rope is guided through these deflecting wheels and through at least one carrying wheel of a carrying wheel structure coupled with the hoisting platform, so that the safety rope forms four load-bearing rope segments and is distributed completely outside the free space. By means of this embodiment, a very low manufacturing cost can be achieved, while more space is available on the side of the above-mentioned reference plane extending vertically through the centre of gravity of the lifting platform.
In another possible design of the method according to the invention, the safety line is guided vertically upwards with respect to a reference plane extending vertically through the centre of gravity of the hoisting platform, starting from a safety line fixing point on the hoisting platform, to a first deflecting wheel arranged vertically upright and perpendicular to the reference plane in the sheave support, after which a second deflecting wheel arranged horizontally perpendicular to the reference plane and away from the reference plane, after which a third deflecting wheel arranged horizontally and parallel to the vertical reference plane is guided vertically to a fourth deflecting wheel arranged vertically upright and perpendicular to the reference plane and towards the reference plane, after which the safety line is guided vertically downwards to a load-bearing wheel structure connected to the hoisting platform, the wheel-carrying structure comprises at least one carrying wheel, the wheel plane of which is arranged vertically and transversely to the reference plane, a fifth deflecting wheel which is arranged in the wheel-wheel support vertically standing and perpendicularly to the reference plane, after the carrying wheel structure, vertically upwards, a sixth deflecting wheel which is arranged horizontally perpendicularly to the reference plane and away from the reference plane, after the fifth deflecting wheel, a seventh deflecting wheel which is arranged horizontally and parallel to the vertical reference plane, mirror-symmetrically relative to the reference plane, opposite the second deflecting wheel, after the sixth deflecting wheel, a eighth deflecting wheel which is arranged vertically and perpendicularly to the reference plane, and towards the reference plane, after the seventh deflecting wheel, and, vertically downwards to a rope stop fixed to the lifting platform.
In a further possible embodiment of the method according to the invention, the safety rope is guided vertically upwards to a vertically standing first deflecting pulley arranged parallel to the reference plane, starting from a safety rope fastening point on the hoisting platform, above the hoisting platform, to a vertically standing second deflecting pulley arranged vertically standing and parallel to the reference plane, after the first deflecting pulley, horizontally and parallel to the reference plane, to a carrier wheel arrangement connected to the hoisting platform and having at least one vertically standing carrier wheel arranged transversely to the reference plane, after the carrier wheel arrangement, to a vertically standing third deflecting pulley arranged vertically upwards and parallel to the reference plane, after the third deflecting pulley, to a vertically standing third deflecting pulley arranged horizontally and parallel to the vertical reference plane, to a fourth deflecting pulley arranged vertically standing and parallel to the reference plane, mirror-symmetrically opposite the first deflecting pulley with respect to the reference plane, after the fourth deflecting pulley, and to a fourth deflecting pulley fixed vertically below the hoisting platform.
In a further possible embodiment of the method according to the invention, the lifting platform is equipped with a lifting device in which the lifting ropes are guided in a free space existing above the lifting platform, starting from the lifting rope holders on the lifting platform, upwards to the lifting rope deflection wheels of the lifting rope deflection device fixed at least temporarily in the free space, and starting from the lifting rope deflection wheels of the lifting rope deflection device, downwards to the rope pulling device arranged on the lifting platform.
The term "cable pulling device" is understood here to mean a device which is suitable for pulling on a cable, in particular a wire rope, and which is used to move the cable, in particular the wire rope, in the direction of its longitudinal axis against a resistance force. The rope pulling means may be manually driven, preferably electrically driven.
The advantage of this design variant is that the process of lifting the lifting platform and thus also the machine platform can be carried out even if the construction crane is not available for a long time.
In a further possible embodiment of the method according to the invention, for lifting the lifting platform by means of the lifting device, a lifting rope deflection device comprising at least one lifting rope deflection wheel is arranged in the region of the free space on the protective platform, and for lifting the lifting platform by means of the construction crane, the lifting rope deflection device is removed from the region of the free space. This embodiment variant has the advantage that the fixing of the rope deflector in the elevator shaft can be carried out easily and cost-effectively, and that the arrangement of the rope deflector in the free space mentioned in the manner provided temporarily in this embodiment variant achieves: the resultant of all load-bearing rope forces of the hoisting ropes of the hoisting device is passed through the centre of gravity of the hoisting platform.
Another aspect of the invention relates to an elevator installation in an elevator shaft of a building in a construction stage, in which elevator installation the available hoisting height of the elevator installation can be adapted to an increased height of the building. The elevator installation is preferably designed such that it is suitable for carrying out the above-described method.
The elevator installation comprises a machine platform mounted in an elevator shaft, which can be lifted along car guide rails and can be temporarily stopped, wherein an elevator drive machine with a drive wheel is arranged on the machine platform. The elevator installation further comprises an elevator car and a counterweight, which are suspended on the machine platform by means of a hoist, wherein the hoist is guided at least by means of the drive wheels of the elevator drive machine, so that the elevator car and the counterweight can be moved upwards and downwards opposite to each other along the guide rails in the elevator shaft by means of the hoist via the hoist by means of the drive wheels. The elevator installation also comprises a hoisting platform mounted in the elevator shaft above the machine platform, which hoisting platform can be hoisted and can be temporarily stopped, by means of which the machine platform with the elevator car or counterweight is hoisted when the available hoisting height of the elevator car should be adapted to the current height of the elevator shaft. The lifting platform is designed in such a way that it is lifted to a higher level by means of a construction crane or other lifting device before the machine platform is lifted. The hoisting platform is equipped with a rope safety device comprising a safety rope which is arranged or can be arranged according to the principle of a pulley block with at least two load-bearing rope portions between the hoisting platform and a pulley support fixed in the elevator shaft above the hoisting platform, wherein the first load-bearing rope portion of the safety rope is fixed or can be fixed on the hoisting platform or fixed in position above the hoisting platform, the last load-bearing rope portion is guided or can be guided past a rope stop fixed on the hoisting platform, and after the speed of the last load-bearing rope portion relative to the rope stop exceeds a predetermined limit, the last load-bearing rope portion is locked by means of the rope stop and the hoisting platform is prevented from further lowering.
The elevator apparatus may include: a vertically displaceable and fixable protection platform above the hoisting platform in the elevator shaft, to which protection platform the sheave support is fixed. The protection platform may be provided with a through opening through which the crane hook can be lowered to the coupling element on the lifting platform.
The rope sheave support can be equipped with four vertically arranged and four horizontally arranged deflection wheels, through which the safety rope is guided and through at least one bearing wheel of the bearing wheel structure coupled with the hoisting platform, so that the safety rope forms four load-bearing rope segments and is distributed completely outside the free space, which enables lowering of the crane hook of the construction crane to the coupling element.
Alternatively, the rope pulley support can only be equipped with four vertically arranged deflection wheels, through which the safety rope is guided and through at least one load-bearing wheel of the load-bearing wheel structure coupled with the hoisting platform, so that the safety rope forms four load-bearing rope segments and is distributed completely outside the free space.
The hoisting platform may be equipped with hoisting means comprising a hoisting rope, a hoisting rope holder, a hoisting rope deflection pulley and a rope pulling device, wherein the hoisting rope is guided in said free space above the hoisting platform, starting from the hoisting rope holder on the hoisting platform, upwards to the hoisting rope deflection pulley of the hoisting rope deflection device temporarily fixed in said free space, and starting from the hoisting rope deflection pulley, downwards to the rope pulling device arranged on the hoisting platform.
Drawings
Embodiments of the invention are explained in more detail in the following description in conjunction with the drawings. Wherein:
fig. 1 shows a cross section through an elevator shaft with an elevator installation whose usable hoisting height can be adapted to an increased height of a building, which elevator installation comprises: a machine platform, an elevator car suspended on the machine platform with a counterweight, and a hoisting platform for hoisting the machine platform, wherein the hoisting platform is equipped with a rope fall arrest device and a hoisting device cooperating with a protection platform. Furthermore, a construction crane is shown, as an alternative to the lifting device, for lifting the lifting platform.
Fig. 2 shows a side view of a part of the elevator installation according to fig. 1, shown in section through the part, wherein a lifting platform for lifting a machine platform is shown, which lifting platform is equipped with a first variant of a rope fall arrester cooperating with a protective platform, which lifting platform can be lifted by means of a construction crane only.
Fig. 3 shows a side view of a part of the elevator installation according to fig. 1, which is shown in section of the part, showing a lifting platform for raising a machine platform, which lifting platform is equipped with a first variant of a rope fall arrest device and with a lifting device likewise cooperating with a protective platform and can be lifted alternatively with a lifting device or a construction crane.
Fig. 4 shows a side view of a part of the elevator installation according to fig. 1, shown in section of the part, wherein a lifting platform for lifting a machine platform is shown, which lifting platform is equipped with a second variant of a rope fall protection and with a lifting device likewise cooperating with a protective platform and can be lifted alternatively with a lifting device or a construction crane.
Detailed Description
Fig. 1 shows an elevator installation 1 according to the invention, which is installed in an elevator shaft 2 of a building in its construction stage and which is suitable for carrying out the method according to the invention. The elevator installation 1 is designed such that the available hoisting height of the elevator car 3 of the elevator installation 1 can be adapted from time to the increasing height of the building or elevator shaft 2.
The elevator installation 1 comprises first of all an elevator car 3 and a counterweight 4, which can be moved vertically in the elevator shaft 2 along car guide rails 6 or counterweight guide rails 7. Secondly, the elevator installation 1 comprises a machine platform 10 on which an elevator drive machine 11 with drive wheels 12 and deflection wheels 13 is fitted, on which machine platform 10 the elevator car 3 and the counterweight 4 are suspended in such a way that the hoist 15 is guided at least via the drive wheels 12, so that the elevator car 3 and the counterweight 4 can be moved upwards and downwards in the elevator shaft 2 opposite to each other by means of the drive wheels 12 via the hoist 15 along the car guide rails 6 or the counterweight guide rails 7. The machine platform 10 is arranged in the elevator shaft 2 in a guided manner on the car guide rails 6, can be lifted in the elevator shaft 2 along the car guide rails 6 and can be temporarily arrested in the elevator shaft by means of horizontally withdrawable struts. Thirdly, the elevator installation 1 comprises a hoisting platform 17 arranged above the machine platform 10, which hoisting platform can be moved and stopped vertically in the elevator shaft 2. The lifting platform 17 is used to lift the machine platform 10, which typically weighs thousands of kilograms. The lifting platform is sized accordingly and equipped with a sufficiently strong elevator 18.
Of course, before lifting the machine platform 10 each time, it is necessary to lift the lifting platform 17 itself to a higher level and fix it there, wherein the lifting is effected by means of a construction crane 40 or another lifting device 35 explained in more detail in connection with fig. 3. Unlike the machine platform 10, the lifting platform 17 is not guided on the guide rails, since the lifting platform must be temporarily stopped in the region of the elevator shaft 2 where the guide rails are not fitted. The car guide rails 6 and the counterweight guide rails 7 are extended upwards before each lifting of the machine platform 10 to the next higher stopping position of the machine platform, which is preferably done starting from a mounting platform, not shown here, that can be mounted between the machine platform 10 and the lifting platform 17.
Fourth, the elevator installation 1 comprises a protective platform 20 which can be fixed in or on the elevator shaft 2 and which is absolutely necessary for protecting the fitter and the elevator installation from falling objects. In the elevator installation 1 according to the invention, the protective platform 20 also serves as a support mechanism for the rope sheave support 26 of the rope fall arrest device 25.1, which serves as a fall arrest safety mechanism for the hoisting platform 17. In fig. 1, a safety cable attachment point 29, a cable stop 30 and a safety cable 31 comprising four load-bearing cable segments can also be considered as components of the cable safety device. The details and the operating principle of the cable protection device 25.1 are explained in more detail below in conjunction with fig. 2.
The protective platform 20 may also form a support mechanism for the hoisting rope deflection means 36 of the hoisting means 35 for lifting the lifting platform 17. The lifting device 35 comprises a rope pulling device 37 fitted on the lifting platform 17, which rope pulling device cooperates with the lifting rope 38 and the lifting rope deflection device 36 in such a way that the lifting platform 17 can be lifted with the lifting device without the use of a construction crane.
Above the protective platform 20 or above the current upper end of the elevator shaft 2, a construction crane 40 is shown, by means of which crane 40 the lifting platform 17 can be lifted more effortlessly than the lifting device 35 if a construction crane is available when the lifting platform is to be lifted.
In the lowermost part of the elevator shaft 2, a spreader storage 50 is shown in a niche of the shaft wall of the elevator shaft 2. The spreader storage is used to prepare the required additional spreader length and pay it out if necessary when the available lifting height of the elevator car 3 increases.
The adaptation of the elevator installation 1 to the newly available higher height of the elevator shaft 2 is substantially effected by: the protective platform 20 is first raised to a higher level if necessary. This is usually performed by means of a construction crane 50 or a crane suspended from e.g. a temporarily mounted beam. Next, the lifting platform 17 is lifted with the construction crane or lifting device 35 and fixed in the elevator shaft 2 at a height which achieves: the machine platform 10 is transported to the planned new level with the elevator 18 of the lifting platform and stopped there. Before the machine platform 10 is lifted, the counterweight 4 is positioned on its lower buffer, the elevator car 3 is coupled to the machine platform 10, and the fixing of the sling of the elevator car and the sling of the counterweight on the sling fixing points 52 on the machine platform 10 is separated. When the machine platform and the elevator car 3 are lifted, the spreader amount required for the lengthening of the spreader 15 is autonomously drawn from the spreader storage 50. After the completion of the lifting process, the lifting appliance 15 is fixed again at the lifting appliance fixing points 52 and, after some adjustment work, the elevator installation 1 is again ready for the available lifting height of the elevator car 3 adapted to the current building height.
On the left side, fig. 2 showsbase:Sub>A side view ofbase:Sub>A part of the elevator installation according to fig. 1 in the uppermost region of the elevator shaft 2, and on the right sidebase:Sub>A sectionbase:Sub>A-base:Sub>A through this region. Shown is a vertically movable lifting platform 17 for lifting a machine platform 10 (fig. 1) in a situation in which the lifting platform is lifted by means of a construction crane 40. In a first embodiment, the lifting platform is equipped with a rope fall arrest device 25.1 which serves as a fall arrest safety mechanism for the lifting platform. The rope fall protection 25.1 comprises a sheave support 26 in which a set of four vertically and four horizontally arranged sheaves 27.1-27.8 are arranged. The definition of the mounting position in vertical or in horizontal direction is here related to the position of the sheave plane. The sheave support 26 with the sheave is fixed on the protection platform 20, which has been positioned in or on the currently uppermost area of the elevator shaft at the latest when the available hoisting height of the elevator installation 1 starts to be adapted to the current height 2 of the building or elevator shaft. Furthermore, the rope fall arrest device 25.1 comprises a safety rope fixing point 29 mounted on the hoisting platform 17, a load wheel structure 32 coupled to the hoisting platform, a rope stop device 30 and a safety rope 31 comprising four supporting rope segments 31.1-31.4.
In the embodiment of the rope protection 25.1 shown in fig. 2, the safety rope is arranged between the hoisting platform 17 and the sheave support 26 fixed in the elevator shaft above the hoisting platform according to the principle of a block and tackle arrangement with at least four supporting rope segments 31.1-31.4, wherein the first, load-bearing rope segment 31.1 of the safety rope 31 is fixed to a rope segment fixing point 29 mounted on the hoisting platform 17 and the last, load-bearing rope segment 31.4 is guided through a rope stop 30 fixed to the hoisting platform.
In the event of a fall arrest of the lifting platform 17, in which the last rope portion 31.4 acting as a load bearing is displaced relative to the rope stop (30) on the basis of a wheeling effect with four times the speed of the lifting platform, the last rope portion 31.4 acting as a load bearing is locked by means of the rope stop (30) after the speed of the last rope portion 31.4 acting as a load bearing relative to the rope stop exceeds a predefined limit. Thereby, the lifting platform (17) is prevented from further lowering until the speed of the lifting platform is unacceptably high. The arrangement shown in fig. 2 of the load-bearing cable sections 31.1 to 31.4 of the cable safety device 25.1 is such that: in the case of activated rope safety devices, the line of action of the resultant of the rope forces of all the load-bearing rope portions of the rope safety devices passes approximately through the center of gravity S of the lifting platform 17, even if the safety rope 31, as described below, must be arranged completely outside a cylindrical free space extending vertically upwards above the center of gravity S, as a result of which the crane rope of the construction crane 40 can be coupled to the lifting platform 17 at or above the center of gravity S. This is important for a smooth lifting of the lifting platform, especially because the lifting platform is not guided on the guide rails when lifting.
The arrangement of the safety cable 31 of the cable protection device 25.1 according to fig. 2 is such that: the entire safety line is distributed outside the free space extending in upward direction above the centre of gravity S of the lifting platform 17. In order to lift the lifting platform 17 by means of the construction crane 40, the crane hook of the construction crane can be lowered through the free space to a coupling element (42) mounted on the lifting platform above the center of gravity. For this purpose, the safety line 31 is arranged, on the one hand, in such a way that a free space is achieved in which a cylinder of at least 0.4m diameter extending upwards starting from the center of gravity S of the lifting platform 17 can be arranged. On the other hand, the protective platform, to which the sheave support 26 is fixed, is provided with a closable through opening 21 for the purpose.
In the cable safety device 25.1 shown in fig. 2 for lifting a platform 17, the following object is achieved: on the one hand, the fall arrest forces occurring during fall arrest are passed through the center of gravity S of the lifting platform and, on the other hand, a free space extending upwards from the center of gravity S can be achieved. In detail, this object is achieved in that the safety rope 31 is guided in relation to an imaginary reference plane extending vertically through the centre of gravity S of the lifting platform 17, starting from a safety rope fixing point 29 on the lifting platform, vertically upwards to a first deflection wheel 27.1 arranged vertically upright and perpendicular to the reference plane in the rope sheave support 26, after the first deflection wheel a second deflection wheel 27.2 arranged horizontally perpendicular to the reference plane and away from the reference plane, after the second deflection wheel a third deflection wheel 27.3 arranged horizontally and parallel to the vertical reference plane, after the third deflection wheel a fourth deflection wheel 27.4 arranged vertically upright and perpendicular to the reference plane, after the fourth deflection wheel a load-bearing wheel structure 32 connected to the lifting platform 17, which load-bearing wheel structure comprises at least one load-bearing wheel 33, a wheel plane of which load-bearing wheels is arranged vertically and transversely to the reference plane, after the sixth deflection wheel plane and parallel to the vertical deflection wheel 27, and after the vertical deflection wheel 7.2, after the vertical deflection wheel 27, and parallel to the vertical deflection wheel 2, after the vertical deflection wheel 27, and parallel to the reference plane, after the vertical deflection wheel 27, and vertical deflection wheel 3, after the reference plane, and after the eighth deflecting wheel, vertically downwards to a rope stop 30 fixed to the hoisting platform.
In fig. 2, the lifting platform 17 is shown in a state without the lifting means 35 shown in fig. 1, either because the lifting means have been removed to enable the crane rope to be coupled with the lifting platform for lifting the lifting platform 17, or because there are no lifting means at all, since the arrangement is such that: the lifting platform only needs to be lifted with the construction crane 40.
Fig. 3 shows, analogously to fig. 2, a side view of a part of the elevator installation 1 according to fig. 1 on the left side in the currently uppermost region of the elevator shaft 2. The lifting platform 17 is equipped with a cable fall arrest device 25.1 according to the first embodiment shown in fig. 2. In contrast to fig. 2, however, fig. 3 shows an elevator installation with a lifting device 35 shown in fig. 1 for lifting the lifting platform 17 when no construction crane is present or when a construction crane is not always available at the point in time when the available lifting height of the elevator installation is adapted.
Compared to the elevator arrangement shown in fig. 2, the elevator arrangement 1 according to fig. 3, equipped with a lifting device 35, additionally comprises: a hoisting rope deflection device 36, a rope pulling device 37, a hoisting rope 38 and a hoisting rope holder 39. The lift cord deflection device comprising at least one lift cord deflection pulley 36.1 is advantageously fastened to the protective platform 20 described in connection with fig. 1 in the region of the passage opening 21 present therein. The first load-bearing section of the hoisting ropes 38 is fixed to the lifting platform 17 by means of a hoisting rope holder 39. From this hoisting rope holder the hoisting ropes are led vertically upwards to at least one hoisting rope deflection pulley 36.1 of the hoisting rope deflection means 36, wound around the hoisting rope deflection pulley by 180 degrees and then led as a second load-bearing section of the hoisting rope 38 downwards to a rope pulling means 37 fixed to the hoisting platform 17, from where the hoisting rope passes. The two load-bearing segments of the hoisting ropes 38 are distributed in the free space described in connection with fig. 2, surrounded by the segments of the safety rope 31, extending upwards from the centre of gravity S of the lifting platform. In the case of the hoisting means 35 also described here, the resultant of the rope forces of the load-bearing segments of the hoisting ropes 38 passes through the center of gravity S of the lifting platform 17. For lifting the lifting platform 17 by means of the construction crane 40, the hoisting ropes 38 and also the hoisting rope deflection means 36 need to be removed from said free space. The rope pulling device 37 is advantageously electrically driven and comprises, for example, a friction wheel which is driven and pressed against the hoisting rope, and the hoisting rope 38 is pulled by the rope pulling device by means of said friction wheel. The lifting platform 17 is lifted here by the mutual cooperation of the rope pulling device 37, the lifting rope 38, the lifting rope deflection device 36 and the lifting rope holder 39.
Fig. 4, like fig. 2 and 3, showsbase:Sub>A side view ofbase:Sub>A part of the elevator installation 1 according to fig. 1 on the left side in the currently uppermost region of the elevator shaft 2 and on the right sidebase:Sub>A sectionbase:Sub>A-base:Sub>A through this region. The lifting platform 17 is equipped with a lifting device 35 as already described in connection with fig. 3. In contrast to the elevator installation shown in fig. 3, however, the elevator installation according to fig. 4 is equipped with a cable protection device 25.2 according to the second embodiment. In this embodiment, the rope sheave support 26 of the rope fall protection 25.2 is equipped with only four vertically arranged deflecting wheels 28.1-28.4, wherein the safety rope 31 is guided through these deflecting wheels and through at least one carrying wheel 33 of a carrying wheel arrangement 32 coupled with the hoisting platform 17 such that: the safety rope forms four load-bearing rope sections 31.1-31.4 and is distributed over its entire length outside the free space required for lowering the crane hook.
By means of the cable arrester device 25.2 shown in fig. 4 for lifting the platform 17, the following object is also achieved: on the one hand, the resultant of the fall protection forces occurring in all the load-bearing cable sections 31.1-31.4 is passed through the center of gravity S of the lifting platform 17 during the fall protection process, and on the other hand, a sufficiently large free space extending upwards from the center of gravity S can be achieved. In detail, this object is solved in that the safety rope 31 is guided vertically upwards in relation to an imaginary reference plane extending vertically through its center of gravity S above the hoisting platform, starting from a safety rope fixing point 29 provided on the hoisting platform 17, to a vertically standing and parallel to the reference plane first deflecting wheel 28.1 of the rope sheave support 26, after which it is guided horizontally and parallel to the reference plane to a vertically standing and parallel to the reference plane second deflecting wheel 28.2, after which it is guided vertically downwards to a carrier wheel arrangement 32 connected to the hoisting platform 17 having at least one vertically standing carrier wheel 33 arranged transversely to the reference plane, after which carrier wheel arrangement 32 a vertically upwards to the vertically standing and parallel to the reference plane third wheel 28.3 of the rope sheave support 26 is guided vertically upwards after the carrier wheel arrangement 32, after which it is fixed horizontally and parallel to the vertical plane and parallel to the reference plane symmetrically to the opposite deflecting wheel 28.1, after which the first deflecting wheel 28.4 is fixed symmetrically to the second deflecting wheel 28.1.
In order to obtain a sufficient cross section of said free space, in this embodiment, measured transversely to said imaginary reference plane, a slightly larger dimension of the part of the lifting platform 17 is obtained, on which there are disposed: the safety rope fixing point 29 and the rope stop 30 of the rope fall arrest device 25.2 and the hoisting rope holder 39 and the rope pull 37 of the hoisting device 35.
With a simpler embodiment, however, a lower production cost can be achieved when sufficient space is available laterally of the mentioned reference plane extending vertically through the centre of gravity S of the lifting platform.
Claims (13)
1. Method for erecting an elevator installation (1) in an elevator shaft (2) of a building in a construction phase, in which method the available hoisting height of the elevator installation is adapted to the increasing height of the building, wherein,
in the elevator shaft (2) is mounted a machine platform (10) which can be lifted along the car guide rails (6) and which can be temporarily stopped, on which machine platform an elevator drive machine (11) with a drive wheel (12) is arranged,
the elevator car (3) and the counterweight (4) are suspended on the machine platform (10) by means of a hoist (15), wherein the hoist is guided at least by the drive sheave (12) of the elevator drive machine (11) such that the elevator car (3) and the counterweight (4) can be moved upwards and downwards opposite each other by means of the drive sheave via the hoist (15) along guide rails (6, 7) in the elevator shaft (2),
above the machine platform (10) is mounted a hoisting platform (17) which can be hoisted in the elevator shaft (2) and can be temporarily stopped, by means of which the machine platform with the elevator car (3) or counterweight (4) is hoisted when the available hoisting height of the elevator car is intended to be adapted to the current height of the elevator shaft (2), and
before lifting the machine platform (10), the lifting platform (17) is lifted to a higher level by means of a construction crane or other lifting means,
it is characterized in that the preparation method is characterized in that,
the hoisting platform (17) is equipped with a rope fall protection device (25.1, 25.2) comprising a safety rope (31) which is arranged between the hoisting platform (17) and a sheave support (26) fixed in the elevator shaft (2) above the hoisting platform according to the principle of a pulley block with at least two load-bearing rope segments (31.1-31.4), wherein a first load-bearing rope segment (31.1) of the safety rope (31) is fixed on the hoisting platform (17) or fixed in position above the hoisting platform, and a last load-bearing rope segment (31.4) is guided through a rope stop (30) fixed on the hoisting platform (17), by means of which the last load-bearing rope segment (31.4) is locked after the speed of the last load-bearing rope segment relative to the rope stop (30) exceeds a predetermined limit, and the hoisting platform is prevented from further descent.
2. Method according to claim 1, characterized in that the load-bearing rope segments (31.1-31.4) of the rope fall arrest device (25.1.
3. Method according to claim 2, characterized in that the entire safety line (31) of the line fall arrest device (25.1: so that the safety line is distributed completely outside a free space extending in the upward direction above the centre of gravity (S) of the lifting platform (17), said free space enabling the lowering of the crane hook of the construction crane (40) onto a coupling element (42) mounted above the centre of gravity (S) on the lifting platform (17).
4. A method according to claim 3, characterized in that the free space is dimensioned in the following way: so that in said free space a cylinder extending in upward direction starting from the centre of gravity (S) of the lifting platform (17) with a diameter of at least 0.4m can be arranged.
5. Method according to any one of claims 1-4, characterized in that the sheave support (26) is fixed to a vertically displaceable and fixable protective platform (20) in the elevator shaft (2) above the hoisting platform (17).
6. Method according to claim 5, characterized in that the protective platform (20) is provided with a through opening (21) arranged in the area of the free space, through which opening a crane hook is lowered onto a coupling element (42) on the lifting platform (17).
7. Method according to any one of claims 1-6, characterized in that the sheave support (26) is provided with four vertically and four horizontally arranged deflection wheels (27.1-27.8), wherein the safety rope is guided through the deflection wheels and through at least one carrier wheel (33) of a carrier wheel arrangement (32) coupled with the hoisting platform (17) such that the safety rope (31) forms four load-bearing rope segments (31.1-31.4) and is distributed completely outside the free space.
8. Method according to any one of claims 1-6, characterized in that the sheave support (26) is equipped with only four vertically arranged deflection wheels (28.1-28.4), wherein the safety rope (31) is guided through the deflection wheels and through at least one carrier wheel (33) of a carrier wheel structure (32) coupled with the hoisting platform (17) so that the safety rope forms four load-bearing rope segments (31.1-31.4) and is distributed completely outside the free space.
9. Method according to claim 8, characterized in that the safety rope (31) is led vertically upwards with respect to a reference plane extending vertically through the centre of gravity (S) of the hoisting platform, starting from a safety rope fixing point (29) on the hoisting platform (17), to a first deflecting wheel (27.1) standing vertically and arranged perpendicularly to the reference plane in the rope pulley support (26), after which a second deflecting wheel (27.2) standing vertically and away from the reference plane to the horizontal, after which a third deflecting wheel (27.3) standing horizontally and parallel to the vertical reference plane is led, after which a fourth deflecting wheel (27.4) standing vertically and arranged perpendicularly to the reference plane is led perpendicularly to the reference plane, after which a fourth deflecting wheel (33) is led vertically downwards to a load-bearing wheel structure (32) connected to the hoisting platform (17), after which at least one deflecting wheel (33) is arranged vertically downwards, after which a transverse deflecting wheel (33) is arranged perpendicularly to the reference plane and perpendicular to the vertical, and after which a fifth deflecting wheel (27.6) is arranged symmetrically to the vertical, and after which the fifth deflecting wheel (27.3) is arranged perpendicularly to the vertical reference plane, and perpendicular to the vertical reference plane, after which the vertical deflecting wheel (27) is led vertically and parallel to the vertical reference plane, a seventh deflecting wheel (27.7) which is arranged behind the sixth deflecting wheel, is guided to the horizontal in the horizontal direction and parallel to the vertical reference plane, is arranged opposite the second deflecting wheel (27.2) in mirror symmetry relative to the reference plane, an eighth deflecting wheel (27.8) which is arranged vertically and perpendicularly to the reference plane is guided behind the seventh deflecting wheel, perpendicularly to the reference plane and towards the reference plane, and a rope stop (30) which is fixed on the lifting platform (17) is guided vertically downwards behind the eighth deflecting wheel.
10. Method according to claim 8, characterized in that the safety rope (31) is led vertically upwards to a first deflecting wheel (28.1) of the rope sheave support (26) vertically standing and arranged parallel to the reference plane, starting from a safety rope fixing point (29) on the hoisting platform (17), relative to a reference plane extending vertically through the centre of gravity (S) of the hoisting platform (17), after which it is led horizontally and parallel to the reference plane to a second deflecting wheel (28.2) vertically standing and arranged parallel to the reference plane, after which it is led vertically downwards to a carrier wheel arrangement (32) connected to the hoisting platform with at least one vertically standing carrier wheel (33) arranged transverse to the reference plane, after which the carrier wheel arrangement (32) is led vertically upwards to a third deflecting wheel (28.3) of the support (26) mirror-symmetrically relative to the reference plane opposite the second wheel, vertically standing and arranged parallel to the reference plane, after which is led to a third deflecting wheel (28.4) mirror-symmetrically relative to the reference plane, and after which is led to a fourth deflecting wheel (28.4) parallel to the reference plane, and after which is led symmetrically to the vertical deflecting wheel arrangement parallel to the reference plane, and parallel to the vertical deflecting wheel arrangement of the first deflecting wheel (17).
11. Method according to any of claims 1-10, characterized in that the hoisting platform (17) is equipped with a hoisting device (35), in which hoisting means the hoisting ropes (38) are led in a free space above the hoisting platform (17), starting from a hoisting rope holder (39) on the hoisting platform (17), upwards to a hoisting rope deflection pulley (36.1) of a hoisting rope deflection means (36) temporarily fixed in the free space, and, starting from the hoisting rope deflection pulley (36.1), downwards to a rope pulling means (37) arranged on the hoisting platform (17).
12. Method according to claim 11, characterized in that for lifting the lifting platform (17) by means of the lifting device (35), a hoisting rope deflection device (36) comprising at least one hoisting rope deflection wheel (36.1) is arranged in the area of the free space on the protective platform (20), and that for lifting the lifting platform (17) by means of the construction crane (40), the hoisting rope deflection device (36) is removed from the area of the free space.
13. An elevator installation (1) in an elevator shaft (2) of a building in a construction phase, in which elevator installation the available hoisting height of the elevator installation can be adapted to the increasing height of the building, wherein,
the elevator installation (1) is designed in particular in the following manner: adapting the elevator arrangement to perform the method according to claims 1 to 12, the elevator arrangement (1) comprising:
a machine platform (10) mounted in the elevator shaft (2), which can be lifted along the car guide rails (6) and is temporarily stopped, wherein an elevator drive machine (11) having a drive wheel (12) is arranged on the machine platform (10),
an elevator car (3) and a counterweight (4), which are suspended on a machine platform (10) by means of a hoist (15), which hoist (15) is guided at least via a drive pulley (12) of an elevator drive machine (11), so that the elevator car (3) and the counterweight (4) can be moved upwards and downwards opposite to each other by means of the drive pulley (12) via the hoist (15) along guide rails (6, 7) in an elevator shaft (2),
a lifting platform (17) mounted in the elevator shaft (2) above the machine platform (10), which lifting platform can be lifted and temporarily stopped, wherein, with the aid of the lifting platform (17), the machine platform (10) with the elevator car (3) or the counterweight (4) can be lifted when the available lifting height of the elevator car (3) is intended to be adapted to the current height of the elevator shaft (2), and
the lifting platform (17) is designed in the following way: so that the machine platform can be lifted to a higher level by means of a construction crane or other lifting device before lifting the lifting platform (10), characterized in that,
the hoisting platform (17) is equipped with a rope fall protection (25.1-25.2) comprising a safety rope (31) which is arranged between the hoisting platform (17) and a sheave support (26) fixed in the elevator shaft (2) above the hoisting platform according to the principle of a pulley block with at least two load-bearing rope segments (31.1-31.4), wherein a first load-bearing rope segment (31.1) of the safety rope (31) is fixed on the hoisting platform (17) or fixed in position above the hoisting platform, and a last load-bearing rope segment (31.4) is guided through a rope stop (30) fixed on the hoisting platform (17), by means of which the last load-bearing rope segment (31.4) is locked after the speed of the last load-bearing rope segment (31.4) relative to the rope stop (30) exceeds a predetermined limit, and the hoisting platform is prevented from further lowering.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
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| EP20182623 | 2020-06-26 | ||
| EP20182623.7 | 2020-06-26 | ||
| PCT/EP2021/067070 WO2021259969A1 (en) | 2020-06-26 | 2021-06-23 | Method for building a lift system, and lift system suitable for carrying out the method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115720568A true CN115720568A (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180045350.8A Pending CN115720568A (en) | 2020-06-26 | 2021-06-23 | Method for building an elevator installation and elevator installation suitable for carrying out the method |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US12012305B2 (en) |
| EP (1) | EP4172096A1 (en) |
| CN (1) | CN115720568A (en) |
| WO (1) | WO2021259969A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023102305A1 (en) | 2023-01-31 | 2024-04-11 | Tk Elevator Innovation And Operations Gmbh | Lifting arrangement and method for moving a machine platform or an elevator machine room unit |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2694279A1 (en) * | 1992-08-03 | 1994-02-04 | Otis Elevator Co | Building construction goods lift - is used following first stage works and includes movable attachment points to permit successive upwards relocation as work progresses |
| FI20090085L (en) | 2009-03-06 | 2010-09-30 | Kone Corp | Elevator system and procedure |
| EP2636629B1 (en) * | 2012-03-06 | 2015-05-06 | KONE Corporation | A method and an elevator arrangement |
| FI125133B (en) * | 2013-03-20 | 2015-06-15 | Kone Oyj | Elevator Installation Arrangement |
| WO2015003965A1 (en) * | 2013-07-10 | 2015-01-15 | Inventio Ag | Expansion of a shaft region |
| RU2652340C2 (en) | 2013-07-10 | 2018-04-25 | Инвенцио Аг | Safety device for platform |
| RU2721376C2 (en) * | 2015-12-14 | 2020-05-19 | Инвенцио Аг | Method for erecting elevator system, and elevator system which can be adapted to increasing building height |
| EP3691985B1 (en) * | 2017-10-06 | 2021-07-07 | Inventio AG | Method for constructing a lift assembly with increasing usable lifting height |
| WO2020088979A1 (en) * | 2018-10-30 | 2020-05-07 | Inventio Ag | Method for installing a lift installation |
| EP3947237B1 (en) * | 2019-03-27 | 2024-01-10 | Inventio Ag | Installation device and method for performing an installation process in a lift shaft of a lift facility |
| EP3872019A1 (en) * | 2020-02-28 | 2021-09-01 | KONE Corporation | Elevator arrangement and method for constructing elevator |
| EP4122864A4 (en) * | 2020-03-16 | 2023-12-20 | Hitachi, Ltd. | Construction elevator device |
| CN116249668A (en) * | 2020-10-01 | 2023-06-09 | 因温特奥股份公司 | Elevator apparatus |
| CN116601102A (en) * | 2020-12-22 | 2023-08-15 | 通力股份公司 | Construction device and method for elevator |
-
2021
- 2021-06-23 WO PCT/EP2021/067070 patent/WO2021259969A1/en unknown
- 2021-06-23 EP EP21735271.5A patent/EP4172096A1/en active Pending
- 2021-06-23 CN CN202180045350.8A patent/CN115720568A/en active Pending
- 2021-06-23 US US18/002,278 patent/US12012305B2/en active Active
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| WO2021259969A1 (en) | 2021-12-30 |
| EP4172096A1 (en) | 2023-05-03 |
| US20230339727A1 (en) | 2023-10-26 |
| US12012305B2 (en) | 2024-06-18 |
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